<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>bootstrap</title>
    <link rel="stylesheet" href="css/bootstrap.min.css">
</head>
<body>
<script src="js/jquery-3.6.0.min.js"></script>
<script src="js/bootstrap.min.js"></script>

<div class="container">
  <ul class="list-group" style="width: 30%;">
    <li class="list-group-item">1</li>
    <li class="list-group-item">2</li>
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</div>

<div class="container">
  <ul class="list-group" style="width: 30%;">
    <li class="list-group-item">
      Javascript
      <span class="badge">2000</span>
    </li>
    <li class="list-group-item">
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    </li>
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      Nodejs
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    <li class="list-group-item">
      H5C3
      <span class="badge">1000</span>
    </li>
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</div>

<div class="container">
  <div class="list-group" style="width: 30%;">
    <a href="" class="list-group-item active">js文章</a>
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</div>

<div class="container">
  <div class="list-group" style="width: 30%;">
    <a href="#" class="list-group-item active">
      <h4 class="list-group-item-heading">List标题</h4>
      <p class="list-group-item-text">内容</p>
    </a>
    <a href="#" class="list-group-item">
      什么都没有
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  </div>
</div>
</body>
</html>